61262520245 has 8 divisors (see below), whose sum is σ = 73564671960. Its totient is φ = 48976917760.

The previous prime is 61262520229. The next prime is 61262520283. The reversal of 61262520245 is 54202526216.

It can be written as a sum of positive squares in 4 ways, for example, as 883218961 + 60379301284 = 29719^2 + 245722^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61262520245 - 2⁴ = 61262520229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4129160 + ... + 4143969.

It is an arithmetic number, because the mean of its divisors is an integer number (9195583995).

Almost surely, 2^61262520245 is an apocalyptic number.

It is an amenable number.

61262520245 is a deficient number, since it is larger than the sum of its proper divisors (12302151715).

61262520245 is a wasteful number, since it uses less digits than its factorization.

61262520245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8274615.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 61262520245 in words is "sixty-one billion, two hundred sixty-two million, five hundred twenty thousand, two hundred forty-five".